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Details
| Topologie | Sperrwandler |
| Eingangsspannung | 9.2-57 V |
| IC-Revision | 00 |
Beschreibung
The TPS23751 is a 16-pin integrated circuit that combines a Power-over-Ethernet (PoE) powered device (PD) interface and a current-mode DC-DC controller optimized specifically for applications requiring high efficiency over a wide load range.The PoE interface implements type-2 hardware classification per IEEE 802.3at. It also includes an auxiliary power detect (APD) input and a disable function (DEN). A 0.5-Ω, 100-V pass MOSFET minimizes heat dissipation and maximizes power utilization.The DC-DC controller features internal soft-start, a bootstrap startup current source, current-mode control with slope compensation, blanking, and current limiting. Efficiency is enhanced at light loads by disabling synchronous rectification and entering variable frequency operation (VFO).The TPS23752 is a 20-pin extended version of the TPS23751 with the addition of a Sleep Mode feature. Sleep Mode disables the converter to minimize power consumption while still generating the Maintain Power Signature (MPS) required by IEEE802.3at.
Eigenschaften
IEEE 802.3at Classification With Status FlagHigh Efficiency Solutions Over Wide Load RangePowers Up to 25.5 W PDsRobust 100 V, 0.5 Ω Hotswap MOSFETSynchronous Rectifier Disable SignalPowerPAD™ TSSOP PackagesComplete PoE Interface Plus DC-DC ControllerAdapter ORing SupportProgrammable FrequencyTPS23752 Supports Ultra-Low Power SleepModes–40°C to 125°C Junction Temperature Range
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Montageart | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(mΩ) | Typ | Version | Vin | VOut1(V) | IOut1(A) | VOut2(V) | IOut2(A) | Vaux(V) | n | VT(V (AC)) | Bauform | IR 1(mA) | RDC1 max.(Ω) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT-Speicherdrossel, 3.3 µH, 1.95 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | Induktivität3.3 µH | Nennstrom1.95 A | Sättigungsstrom1.8 A | Eigenresonanzfrequenz80 MHz | MontageartSMT | – | – | – | – | Gleichstromwiderstand65 mΩ | – | VersionSMT | – | – | – | – | – | – | – | – | Bauform4818 | – | – | ||||
 | WE-PoEH Übertrager für Power over Ethernet High Power, 41 µH, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Induktivität41 µH | – | Sättigungsstrom4.2 A | – | MontageartSMT | – | – | – | – | – | – | VersionFlyback | Input Voltage 33 - 57 V (DC) | Ausgangsspannung 112 V | Ausgangsstrom 11.5 A | Ausgangsspannung 212 V | Ausgangsstrom 21.5 A | Hilfsspannung12 V | Übersetzungsverhältnis2.67:1:1:1 | Prüfspannung1500 V (AC) | BauformEPQ13 | – | – | ||||
749022016 | 10/100/1000 Base-T SMT Transformer, 350 µH, – | Downloads– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie 10/100/1000 Base-T SMT Transformer | Induktivität350 µH | – | – | – | MontageartSMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Prüfspannung1500 V (AC) | – | – | – | |||
 | WE-CBF SMT-Ferrit, –, 1.5 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | Nennstrom1.5 A | – | – | MontageartSMT | Impedanz @ 100 MHz300 Ω | Maximale Impedanz450 Ω | Maximale Impedanz250 MHz | Nennstrom 22000 mA | Gleichstromwiderstand150 mΩ | TypHochstrom | VersionSMT | – | – | – | – | – | – | – | – | Bauform0603 | Nennstrom [1]2000 mA | Gleichstromwiderstand [1]0.15 Ω |